We are happy to announce an updated bacterial and archaeal representative genome collection! We have selected 13,835 among 214,000 prokaryotic RefSeq assemblies to represent their respective species. The collection has increased by 6% since December 2020. About 950 species are represented for the first time, 476 species are represented by a better assembly, and 170 species were removed because of changes in NCBI Taxonomy or uncertainty in their species assignment.
We have updated the database on the Microbial Nucleotide BLAST page as well as the basic nucleotide BLAST RefSeq Representative Genome Database to reflect these changes. Finally, remember that you can now run Blast searches against the proteins annotated on representative genomes, which are in the RefSeq Select proteins database.